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From: Markus Franke <Markus.Franke@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] rt_pipe_write() returns -ENOMEM
Date: Mon, 05 Mar 2007 17:10:57 +0100	[thread overview]
Message-ID: <45EC4111.6070104@domain.hid> (raw)

Dear Xenomai Developers/Users,

I want to exchange data between User Space and Kernel Space via a
Message Pipe. Therefore I set up a pipe via rt_pipe_create() and write
to the pipe using rt_pipe_write(). After a few writes rt_pipe_write()
returns -ENOMEM what means that memory is exhausted. What happens if I
just ignore this error code? Does it simply mean that values are dropped
until the first value is read from the pipe by the User-Space Task? If
so, how can I increase the size of the message pipe? rt_pipe_alloc()
doesn't seem to solve the problem, isn't it?

Thanks in advance,


Markus Franke


             reply	other threads:[~2007-03-05 16:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-05 16:10 Markus Franke [this message]
2007-03-05 16:17 ` [Xenomai-help] rt_pipe_write() returns -ENOMEM Gilles Chanteperdrix
2007-03-05 16:53   ` Markus Franke
2007-03-05 17:12     ` Gilles Chanteperdrix
2007-03-05 17:54       ` Markus Franke
2007-03-05 18:30         ` Gilles Chanteperdrix
2007-03-05 20:12           ` Gilles Chanteperdrix
2007-03-05 23:51             ` Markus Franke
2007-03-08 15:55               ` Philippe Gerum

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